SC-738
Chromatography
Lower Sec Science · Secondary 1 · Medium · Chromatography
A solution of blue dye and water is placed on a chromatography paper to check if the dye is pure. After the solvent has risen, only one blue spot is seen on the paper.
Based on chromatography, what does this result show about the blue dye?
Based on chromatography, what does this result show about the blue dye?
- The dye is a mixture of several coloured substances
- The dye is pure and contains only one coloured substance
- The dye does not dissolve in the solvent
- The chromatography paper was not dried properly
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